| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.53 | 2.59 | -0.06 |
| Feb | 2.03 | 2.09 | -0.06 |
| Mar | 2.71 | 2.75 | -0.04 |
| Apr | 3.81 | 3.65 | 0.16 |
| May | 4.21 | 4.27 | -0.06 |
| Jun | 4.66 | 4.67 | -0.01 |
| Jul | 4.59 | 4.55 | 0.04 |
| Aug | 3.96 | 4.03 | -0.07 |
| Sep | 3.12 | 3.21 | -0.09 |
| Oct | 3.08 | 3.04 | 0.04 |
| Nov | 3.11 | 3.11 | 0.00 |
| Dec | 2.46 | 2.48 | -0.02 |
40.27 | 40.44 | -0.17 |